189647888 has 20 divisors (see below), whose sum is σ = 375989328. Its totient is φ = 92618400.

The previous prime is 189647881. The next prime is 189647891. The reversal of 189647888 is 888746981.

It is not an unprimeable number, because it can be changed into a prime (189647881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137138 + ... + 138513.

Almost surely, 2^189647888 is an apocalyptic number.

It is an amenable number.

189647888 is a deficient number, since it is larger than the sum of its proper divisors (186341440).

189647888 is a wasteful number, since it uses less digits than its factorization.

189647888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275702 (or 275696 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 59.

The square root of 189647888 is about 13771.2703843908. The cubic root of 189647888 is about 574.5343557187.

The spelling of 189647888 in words is "one hundred eighty-nine million, six hundred forty-seven thousand, eight hundred eighty-eight".